Magazine-stove.



PATENTED FEB. 5, 1907.

C. F. A. RfiELL. MAGAZINE STOVE.

APPLICATION FILED APR.18.1906.

wirneooao ma/ magazine.

UNITED srATns PATENT oFFIoE.

.CORNELIS F. A. ROELL, OF INDEPENDENOE,.MISSOURI, ASSIGNOR TO ROELL PORATION OF MISSOURI.

MAGAZINE-STOVE;

Specification of Letters Patent.

Patented Feb. 5, 1907.

Application filed April 18, 1906. Serial No. 312,356-

lo" a whom it may concern.-

Be it known that LCORNELIs F. A. RoELL, at-itizcn of the United- States, residing at Independence, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Magazine- Stoves; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which. it appertainsto make and use the same.

My present invention relates to heatingstoves in which the fuel is fed by gravity from a magazine; and the objects of my improvement are to feed highly-heated air to the fire-zone space to effect the combustion of the smoke and gases, to increase the heating capa ity, and to provide for this purpose a cheap and effective construction and in which the manufacture and assembling of the parts is rendered easy.

Rcfening to the accompanying drawings, Figure 1 is a vertical section of a stove embodying my improvements. Fig. 2 is a like section taken at light angles to Fig. 1. Fig. 3 is a top view of the hollow ring, showing the ring (over-plate removed to expose the hotair-exit openings. Fig. 4 is a vertical section of the hollow ring part. Fig. 5 is a hozizontal section on the line 5 5 of Fig. 1, showing the air-ring (over-plates and theiri'elation to theair-inlet pipes and the magazine. is a vertical section of the parts whi 'h form the hollow ring and its attachment to the Fig. 7 is a horizontal se tion on the line 7 7 of Fig. 1. --s

The im losing casing 1 is mounted upon a base-casting 2, and the grate 3 is supported upon the lower edge of a ring-casting 4, which has the form of an inverted frustum of a (one and is supported at its upper edge, preferably by legs 5. against the inner wall of the casing, and this shallow flaring casting forms the fire-pot. A casting 6 surmounts the top of the casing and has a rentral opening to receive a swinging feed-lid 7, having a register 8 for controlling the inlet of air for the downdraft, and a laterally-swinging cover 9 is provided for the feed-lid. The top casting has a depending flange 10 around its feed-opening, and to this flange a (orrugated magazine 11 is suspended by nutted bolts 12 and preferably flares downward. To the lower end of the magazine a hollow ring is secured, so that its inner wall is in alinement with the inner wall of the magazine. This ring, is preferably formed of alower part 14,

of'trough shape, and cover lates 15, secured to the t1 ough part and to t e magazine, and is for heating and for delivering hot air to the fire-zone space.

The ring cover-plates 15 are preferably of two segmental parts, (see Fig. 5,) each formed near its inner edge with a vertical rim 16, which terminates inangles at the ends 17 of each part. ring part extends under the edge of the magazine, as in Fig. 6, and the rim 16 of each (over part is bolted tothemagazine, as in Figs. 2 and 5 while the lower trough part is secured to the plate cover parts by nutted bolts and lugs 19, depending from the plate cover parts within the chamber of the lower part. The lower ends of the inlet air-pipes 18 form joints with the plate cover parts, and this joint is inclosed by the angle ends 17 of the plate cover parts and by a rim 21 at the outer wall of the ring trough part, so that the plate parts form covers for the trough part, except at the junction of the inlet airpipes with the trough part. .By this construction the ring is suspended by the magazine and by the air-inlet pipes 18 by the bolting of the outer walls of the latter to the rims 21 on the outer walls of the ring trough part and the bolting of the plate cover parts to the inner wall of the trough part by the lugs 19, whereby the trough-ring parts are easily assembled and separated for repails.

At opposite dianeteT-points the troughring is set out or offset from its circular walls, and on these set-out parts the rim s 21 21v are formed for fastening to the lower endsof the air-inlet pipes and for closing their joints. The upper ends of these air-feeding pipes 18 are secured to the top casting at openings in which the pipes open and are provided with registers 22 for controlling the inlet of the air into the pipes. By this construction the airfeeding pipes and the n agazine both serve as the Ir eans of suspending the trough-ring, the bottom of which has perforations 23, through which the air entering the pipes at their registered openings passes down into the char".- ber or trough of the ring, where it is highly heated, and then passes out through apertures 23 into the fire-zone space which is formed by the grate-supporting fire-pot and The inner edge of each from which the products of combustion pass upward into the combustion-Chan.ber 25 hetwecn the casing and the magazine and thence to the top smoke-pipe. The inner walls of the trough-ring also have apertures 26, Fig. 4, which open into the fire above the fire-zone space, so that the air passes into the fire from the chamber of the ring at its bot tom and at its sides, while the downward top draft aids combustion in the iragazinc and the upward draft tlu'ough the grate is l sed in starting and maintaining the fire and is controlled by a register 27.

In order to distribute the llane and the heat products equally over the interior radiating-wall of the casing, I provide a heat-deflecting plate 28, riveted to the outer wall of the magazine and preferably llaring downward, leaving a clear passage 29 between its edge and the inner wall of the casing, so that the heat products rising from the fire-zone space around the outside of the ring will strike the flaring walls and be deflected downard, giving thereby the advantage of greater radiation of the heat throrgh the casing. I prefer to make this heat-deflecting plate of two sciriring parts and bolt them together over the air-feeding pipes, as in Fig. 7 In feeding feel the opening of the lid nay cause, by poor draft-fines, the gases and the SiTOkB to pass out into the room, and to prevent this I provide the top feed-lid with an arm 30, depending in posit-ion against the inner vertical side of the smoke-daa'tper 31, pivoted in the wall of the n" agazine, so that the weight of the lid when closed keeps the s TOkG-(litii per closed against the tendency of 'a weighted arm 32*, Fig. 2, on the claw. per to keep it open. Therefore the opening of the feed-lid causes its depending arm 30 to be lifted free of the smoke-damper, allowing it thereby to open, so that the gases and sn oke will pass out from the magazine into the smoke pipe. I prefer to arrange the air-feeding pipes so that the wall of the magazine will form one side of the pipes, as in Fig. 5; but obviously the pipes 11? ay be set out from the magazine. To relieve the pressure of the gases in the upper part of the 1r agazine, apertures 32, Fig. 1, are provided in the upper part of the n agazine to allow the gases to pass out into the air-feeding pipes and with the air down into the trough-ring and to the fire, and thereby render the stove satisfactory in caring for the accumulation of gases in the Ira'gazine. These apertures may be provided with flap-valves 33, which are caused to openv by any undue pressure of gas in the magazine, but prevent a constant escape or updraft of gases.

A convenient means of suspending the air-.

feeding pipes is by pieces of iron 34, Fig. 1, bolted to the inner wall of the casting and terminating the outer wall of each air-feeding pipe in an angle end 35, which rests upon the-edge of each piece of iron as a ledge, the

two subscribin upper open ends of said pipes being made to fit the under side of the top casting and fastened to it.

The bolting of the air heating and feeding ring to the lower end of the magazine, as m Fig. 2, and to the lower cndsof the air-feeding pipes, as in Fig. 1, and the fastening of the pipes and the magazine to the top casting and the fastening of tho heat-d eflector to the magazine gives the advantage of setting these parts into and suspending them Within the casing as an entirety and fastening the top casting in place, so that it can be easily lifted out of the casing when it ma be necessary to renew the air heating an feeding ring or for repairs.

l. cl aim- 1. In a stove, a casing, a magazine, a ring formed of an open-top trough part and a cover f or said trough part formed of two segmental plates, a pair of air-feeding pipes opening into said trough part, one on each side of the magazine fitted and secured upon its walls and against the sides of which pipes the ends of the segmental plates abut, and means for securing the segmental plates to the trough part and to the magazine.

2. In a stove, a casing, a magazine having valved apertures in its walls at its upper end, a hollow ring at the base of the magazine, a pair of air-inlet pipes open at the to of the stove and opening into said ring an having communication with the magazine by its top wall valved apertures whereb the pressure.

of gases in the upper part of t e magazine is relieved and the gases caused to pass into and down the air-feeding pipes into the ring thereby charging the air with gas before it is delivered into the fire.

3. In a magazine-stove, a casing, a top casting, a magazine, a grate, a ring formed of a trough part and segmental covering-plates therefor, each plate bolted to the magazine, the trough part having delivering-openings and bolted to the covering-plates, and airinlet pipes opening into the top of the troughring and bolted to the outer wall thereof.

4. In a stove, a casing, a suspended ma azine, a grate, a hollow ring at the lower e ge of the magazine, the outer wall of said ring having offsets at opposite sides of its diameter and rims rising from the vertical walls of said offsets, segmental plates forming covers for the hollow ring, air-feeding pi es formin joints with the offset rims, the sai segmenta plates secured to the magazine, and the said hollow ring secured to the said segmental plates. v v

In testimony whereof I have signed my name to this specification in the presence of witnesses.

, ORNELIS F. RGELL. Witnesses:

F. W. BARBEE, I W. O. SKINNER. 

